Home / 12,111,150.40-18,146,160.60-7,308,748.60

Finding the Fourth Proportional to 12,111,150.40, 18,146,160.60 and 7,308,748.60

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Solution

The fourth proportional to 12,111,150.40, 18,146,160.60 and 7,308,748.60 is: 10,950,712.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,111,150.40 : 18,146,160.60 = 7,308,748.60 : x
  2. Step 2: Convert to fraction form
    12,111,150.40/18,146,160.60 = 7,308,748.60/x
  3. Step 3: Cross multiply
    12,111,150.40x = 18,146,160.60 × 7,308,748.60
  4. Step 4: Simplify right side
    12,111,150.40x = 132,625,725,880,625.17
  5. Step 5: Solve for x
    x = 132,625,725,880,625.17/12,111,150.40
  6. Step 6: Final answer
    x = 10,950,712.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.